baber/WOPTO huggingface dataset:
Patent GB-996795-A (GB)
Title: A method of and means for making through connections in die-stamped circuit boards
Inventor: GREASLEY ERIC ARTHUR
IPC: H05K3/04
Filed: 1963-02-27
Abstract: 996,795. Forming sockets in circuit boards; perforating. PRESSAC Ltd. Feb. 27, 1964 [Feb. 27, 1963], No. 7845/63. Headings B3A and B3W. [Also in Division H2] A method of making a " through-connection " in die stamped circuit boards consists in supporting a board to receive the circuit on a blanking die formed with holes in the desired positions, and stamping the circuit on to the board from a sheet of copper coated with adhesive on its side facing the board by a heated die having cutting edges for cutting out the required circuit from the copper sheet, and which also incorporates punches projecting beyond said cutting edges for simultaneously perforating the board and forcing the displaced copper into the holes formed in the board. The board 1 and copper sheet 2 are placed over a die 4 and acted on by the tool 3 which has cutting edges 7 and punches 6. Fig. 2 shows a board 1 which has a die stamped circuit on each face, the copper 9 from each side of the board forming a complete lining through the hole 10. Specification 989,471 is referred to.
Patent GB-235666-A (GB)
Title: Improvements in or relating to handles for doors
IPC: E05B1/00
Filed: 1924-03-28
Abstract: 235,666. Hodgetts, R., and Hodgetts, S. March 28, 1924. Knobs. - A door knob 1 has a hole 2 centrally drilled ex. tending partly therethrough into which is driven a screwthreaded spindle 3 having radial projections 4 stamped on it to bite into the inner surface of the hole to prevent movement between the knob and spindle. A washer 5 on the screw threaded portion of the spindle bears against a projection 4 and forms the bearing surface for a tubular pressing tool. A cup-shaped member 6 with a hole in its base passes over the spindle 3 when driven into the knob and engages with the washer 5; the edge 7 of the member 6 is spua over a flange 8 formed on the knob.
Patent GB-751991-A (GB)
Title: Improvements in or relating to the treatment of coated surfaces
Inventor: GREEN JOSEPH
IPC: C03C23/00
Filed: 1954-03-18
Abstract: 751,991. Discharge apparatus. GLAXO LABORATORIES, Ltd. Jan. 5, 1955 [March 18, 1954], No. 7916/54. Class 39 (1). [Also in Group XVII] The surface of a glass bottle accidentally coated with a silicone, e.g. in applying a silicone to the interior, is treated with a high-frequency electrical discharge so that a label, cap, &c. will stick. The electrode 3, Fig. 1, of a Tesla coil has teeth 4 of aluminium foil. The electrode may be an annulus 6, Fig. 3, with teeth 7 suspended above the top of the bottle 9 or a thin blade tapered to a fine edge. The blade may be mounted to swing freely and wipe the tops of bottles as they move past on a conveyer. Specifications 744,249 and 748,843, [both in Group XVII], are referred to.
Patent GB-478783-A (GB)
Title: Improvements connected with boosters
IPC: H02J7/32
Filed: 1937-03-18
Abstract: 478,783. Electricity supply; automatic control systems. ECLAIRAGtE DES VEHICULES SUR RAIL. March 18, 1937, No. 7963. Convention date, March 25, 1936. [Class 38 (iv)] Boosting by dynamo-electric machines ; controlling electromotive force.-In a system in which a load is supplied either from a constant voltage dynamo or from a battery through a booster group consisting of an electromotor coupled to a dynamo, the booster dynamo' is provided with two field magnets opposite in action only one of which is operative during charging of the battery by the dynamo. When switch 3 is closed, a constant voltage dynamo supplies a load 5 through leads 2 and also charges the battery 4 through the booster dynamo 8 which is driven from the motor 6. The two oppositely acting fields 10, 11 of the dynamo 8 are connected across the battery and either may be short-circuited by the armature 14 which is acted upon by a spring 16 in opposition to a winding 13 across the leads 2. When the dynamo is connected, the full voltage acts upon winding 13 which attracts armature 14 and short-circuits field 11. When switch 3 is opened, armature 14 short-circuits field 10 and the voltage of the current supplied to the mains by battery 4 is boosted by dynamo 8 until armature 14 leaves contact 17 and acts as a vibrating controller of voltage. The field 7 of the motor 6 may be connected permanently across the battery 4, or may be so connected only when switch 3 is opened by the additional blade 19 moving with switch 3. The armature 14 will then not vibrate, but will short-circuit one or the other of the fields 10, 11. A resistance 22 may be inserted in the circuit of the motor field 7 to reduce the speed of the motor at the commencement of the period of discharge of the battery.
Patent GB-428722-A (GB)
Title: Improvements relating to devices for tapping containers
IPC: B67D3/04
Filed: 1934-03-14
Abstract: 428,722. Valves combined with vents. MAGGENTI, A. L., 602, Filbert Street, San Francisco, U.S.A. March 14, 1934, No. 8039. Convention date, March 17, 1933. [Class 135] [See also Group XVII] A vented tap for withdrawing fluid from a sealed metal container has a valve member 17 mounted within a body 10 and rotated by a handle 20. It is held in place by a setscrew 18 and has a packing 22. A vent hole 16 is obturated by a ball 26 seated in a cam groove 25 when the valve is closed, but permits air to enter when the valve is open, the vent air passing along a channel 24. If the container itself has a vent the vent hole 16 is closed by rotating the valve body 17 a little farther and thus forcing the ball 26 into contact with the vent opening.
Patent GB-216104-A (GB)
Title: Improvements in data displaying devices
IPC: B42D19/00
Filed: 1924-03-31
Abstract: 216,104. Bates Manufacturing Co., (Assignees of Babson, S. M.). May 18, 1923, [Convention date]. Reel and non-endless web apparatus.-In a data displaying device, of the kind in which a flexible strip, carrying the required data such as the names and numbers of telephone subscribers, is moved rapidly in either direction to bring any desired portion into view, the strip serves as an indicator to show the operator clearly the portion of the strip in view even when it is moving rapidly. The strip 6 mounted in a oasing 3 is transferred from one roller 4 to another roller 5 or vice versa by a handle 24 and suitable gearing wheels 16, 17, 18, 19, 22, an opening 11 being provided in the casing to view a portion of the strip. A straight, stepped, or other shaped line A extends diagonally across the strip from one end to the other, and an index 5 corresponding to the index 14 on the side of the strip is provided on the casing and so arranged that the line A points to the letter on the casing corresponding to the letter visible on the strip.
Patent GB-476718-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/42
Filed: 1937-03-19
Abstract: 476,718. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. March 19, 1937, No. 8200. Convention date, July 16, 1936. [Class 39 (i)] The anode is held in position by a rigid forkshaped member secured to the upper end of the anode and sliding in guides in the anode. In the arrangement shown, the anode 30 consists of two U-shaped portions furnished with flanges 73 secured together and formed with channels which constitute tubes 71 into which are slid rods 1, 2 attached to a member 91 which is secured to a rigid rod 90 sealed into the upper end of the envelope. The flanges 73 also serve as distance pieces to separate two cross-shaped insulators 40, 41. The cathode is tensioned by springs 24 bearing on the insulator 40, and a control grid, a suppressor grid and a shield grid are each mounted on a pair of rods, one of which passes through holes and the other through slots 80, 81 in the insulators 40, 41.
Patent GB-1284217-A (GB)
Title: Method of apparatus for the continuous treatment of textile materials
IPC: D06B21/00
Filed: 1970-02-20
Abstract: 1284217 Continuous dyeing of fibres VEPA AG 20 Feb 1970 [26 Feb 1969 31 Jan 1970] 8267/70 Addition to 1195916 Heading D1L Rovings 23, having been pad dyed, are set in a sealed setting device 27 during passage around at least one of three sieve drums 17 to 19 and passage in a folded state along a sieve conveyor belt 29, the sieve drum being subject to a suction draught and continuously recirculating steam or hot air, the rovings being in a tension-free state. The rovings are finally passed through sieve drum washers and dryers and are then wound up (see Fig. 1). The conveying speed of the belt 9 is slower than that of the sieve drums 17 to 19. Synthetic fibres, e.g. polyacrylonitrile and polyacrylate are treated with saturated steam at 100 to 102‹C for from 3 to 20 minutes, and polyester fibres are treated by the thermostat process with hot air or superheated steam at 170 to 230‹C for from 20 sec. to 1 minute. The setting device, which may include only one sieve drum (Fig. 1), is sealed at the inlet and outlet by squeeze rolls 22. The device may treat bands of rovings, slabs, or fibres between 1200 mm and 1800 or more mm wide at a rate of 150 m/minute.
Patent GB-932185-A (GB)
Title: Improvements in and relating to colour television
Inventor: GRAHAM REGINALD
IPC: H04N9/24
Filed: 1959-03-10
Abstract: 932,185. Colour television tubes. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. March 8, 1960 [March 10, 1959], No. 8296/59. Class 39 (1). [Also in Group XL (b)] In a colour television receiver utilizing a picture-reproducing screen comprised of colour-reproducing stripes and index stripes, a plurality of sets of index strips is provided, each set furnishing an index signal separable from the signals furnished by the other sets (either on a frequency basis, by giving different spacings to the sets or, on a signal characteristic basis, by employing strips having different responses to the scanning beam), the arrangement being such that the index signals due to the different sets are made to be substantially, in phase with one another either by employing suitable phase-shifting circuits or, by suitable arrangement of the spacing and response decay times of the index stripes. Fig. 1, shows one embodiment in which the picture reproducing screen comprises the end wall 10 of a cathoderay tube and includes colour-reproducing phosphor stripes R (red), G (green) and B (blue) together with two sets of index stripes I 1 , I 2  respectively of a short-persistence phosphoremitting ultra-violet light. A complete sequence of stripes is contained in the length S (the edges E 1  and E 2  being joined) the arrangement being such that, in response to an electron beam scanning in the direction of arrow 11, index signals having frequencies of ¢ and 1/3 that of the frequency (the writing frequency) with which the colour triplets (e.g. the R, G and B stripes) are scanned are produced by means of a photo-multiplier responsive to the ultra-violet light from stripes I 1  and I 2 , respectively. These signals are then separated by filter circuits, multiplied by 2 and 3 respectively, phase-shifted relatively, by 180 degrees and combined to form the indexing signal which is employed in known manner to control the application of chrominance signals to the modulator electrode of the tube. Before combination of two signals may be amplified by different amounts to equalize their amplitudes or, the materials used for the two sets of index stripes may be selected so that equal amplitude signals are produced after frequency multiplication and phase-shifting. The spacings of the index stripes I 1 , I 2  may be such as to produce index signals having other relationships to the writing frequency. When the spacing is made such that both signals are of equal frequency the two sets of signals may be distinguished by employing materials having different spectral responses (or different seconding emission coefficients) for the index stripes. Specifications 895,771 and 895,772 are referred to.
Patent GB-584186-A (GB)
Title: Improvements in control systems for direct current electric motors
IPC: H02P7/282
Filed: 1939-03-15
Abstract: 584,186. Eddy current brakes. TUSTIN, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 15, 1939, No. 8334. [Class 103 (i)] [Also in Group XXXVII] An eddy current brake 8, is driven through gearing including a clutch 15 controlled by centrifugal masses so as to slip when the speed at which the brake is driven exceeds a certain value, above which the braking effect becomes independent of the speed. A second eddy current brake 22 is directly driven. The excitation of the brake magnets 9, 11 may be controlled by the field controller 7 of an electric motor being braked so as to vary as the motor field. The torque-speed characteristics resulting from the arrangement are described with reference to Figs. 2 and 3 (not shown).
Patent GB-1255506-A (GB)
Title: Microwave power divider
Inventor: DOWDALL LESTER ANTHONY
IPC: H01P1/12
Filed: 1969-02-15
Abstract: 1,255,506. Waveguide junctions and switches. TRANSCO PRODUCTS Inc. 15 Feb., 1969, No. 8337/69. Heading H1W. A microwave switch or power-divider comprises a rotatable cylindrical member supporting a tapered blade which extends in the common space of a junction. As shown, the junction consists of arcuate branch waveguides 35a, 35b meeting in a common waveguide 35c. The apex between the branch waveguides is formed to accommodate a switching member having a rotatable cylindrical part 36 and a tapered blade portion 25 which lies in the H-plane of the common waveguide 35c, the position of the blade determining the distribution of energy between, the branches. The outer walls of the branches are formed by a compound curve generated by circles of equal radius C, D. The inner walls lie on a circle of radius E partly formed by the curvature of the blade 25. Alternatively, the   inner walls may follow a compound curve. The junction is formed in a conductive block provided with a top and/or bottom plate which provides one of the narrow walls of the junction. The block and plate may be recessed to accommodate rotating discs which are fixed to and coaxial with the switching member 36. In order to prevent radiation of energy, the discs are arranged to bear against elements of dissipative material recessed into the block or the plates. In an alternative embodiment, the discs are not used and a small gap is left between the switch member and the narrow sides of the junction. This gap may accommodate a set of spring- pressed rollers. The switch member may be of composite construction, the blade being of a resilient material such as beryllium copper. In order to obviate discontinuities, the outer walls of the junction may be recessed to accommodate the tip of the blade. Figs. 14, 15 show an alternative embodiment in which two switching members 130, 131 are used to distribute energy from a common source 111 between outputs 112, 113, 114.
Patent GB-552975-A (GB)
Title: Improvements in and relating to vacuum cleaners
IPC: A47L5/32
Filed: 1942-06-19
Abstract: 552,975. Vacuum cleaners. BRITISH THOMSON-HOUSTON CO., Ltd. June 19, 1942, No. 8417. Convention date, June 24, 1941. [Class 8 (i)] The casing of a vacuum cleaner comprises a base element including side and top walls 25, 32 of a suction chamber the lower part 21, 21a of a fan chamber and a cradle 9, 10 for a horizontal motor, the motor-fan shaft extending into the suction chamber where it carries a driving belt for the agitator 23 ; a removal fan cover 29 is provided integral with a tongue 30 covering a slot in the wall 32 through which on removing the cover 29 the motor shaft can be lifted. The motor is supported in the cradle by rubber rings 13, 16 held in place by a strap 15 and by the cover 29. A lamp 36 is disposed above the wall 32 and is covered by a hood 33 with a slotted front lip directing the light. A plate 26 covers an aperture in the nozzle chamber provided for attachment of a converter tool.
Patent GB-738517-A (GB)
Title: Improvements in and relating to solid fuel burning open fires or combustion grates
Inventor: GRIEVE ROBERT MORTON
IPC: F24B1/193
Filed: 1953-03-26
Abstract: 738,517. Firegrates; trivets. FEDERATED FOUNDRIES, Ltd. March 25, 1954 [March 26, 1953], No. 8422/53. Class 126. A fireplace having a firebox with a solid front and a controlled air inlet below it is provided with a plate mounted so that it can be supported to serve as a trivet, pushed backwards over the top of the firebox to retard combustion or turned to form an upward extension of the firebox front to increase the capacity of the firebox. A plate f with triangular side webs g joined by a front web h extends beyond the web h and is provided with side flanges j which rest on side guides b sloping slightly upwardly and rearwardly from the top front of the firebox. A stop k is provided under the rear edge of the plate; which may be shaped to fit against the fire back. Lower lugs c provided on the sides of the firebox prevent the plate f from dropping when it is pulled forward with the stop k against the front to form a trivet. The plate may be pushed backward to close the top of the firebox, or tilted so that the flanges j rest against upper side lugs d and the front web h rests on the front of the grate to increase the capacity of the firebox.
Patent GB-1410282-A (GB)
Title: Mobile irrigation apparatus having a monitoring system
IPC: A01G25/16
Filed: 1973-02-21
Abstract: 1410282 Mobile irrigation apparatus LOCKWOOD CORP 21 Feb 1973 [9 June 1972] 8447/73 Heading AID A mobile irrigation system with a distribution pipe having one end pivoted on a central support tower and supported at intervals along its length by self-propelled moving towers so that it covers a circular area of a field, is provided with a display panel of lamps indicating the operation of the system. Indication is given of the availability of the power supplies, selection of forward or reverse movement, operation of water-pump and tower drive motors, and operation of a device to detect mis-alignment of the towers. This involves an electrically energised wire stretched 'between the end towers, the shorting of which by any severe mis-alignment operates relays to give an appropriate indication on the panel and also stop the movement of the towers and operation of the water supply pump.
Patent GB-269315-A (GB)
Title: Improvements in means for elastically connecting landing gear to aircraft
IPC: B64C25/62
Filed: 1926-03-29
Abstract: 269,315. Short, H. O. March 29, 1926. Straight bars arranged for torsion.- Floats or landwheels are resiliently connected to an aircraft by means of torsion tubes. In the arrangement shown in Figs. 1 and 2, two such tubes D, D<1> carried by the float are provided with cranks H, H' pivoted together and to a member J secured to the rear cross tube B which is otherwise free to move in a vertical guide in the float. The forward end of the float instead of or as well as the rear end may be similarly arranged for up and down movement against torsion tubes which may be carried by the aircraft instead of the float. In a modification, transversely arranged torsion tubes are carried by the aircraft and are connected by cranks to the floats. In a further modification torsion tubes are arranged one within the other and are connected by cranks with pivoted frameworks carrying the wheels.
Patent GB-382866-A (GB)
Title: Improvements in electric radiators
IPC: F24C7/04
Filed: 1932-03-22
Abstract: 382,866. Electric radiators. LAMB, N. A., 46, Clifton Avenue, West Hartlepool. March 22, 1932, No. 8464. [Class 39 (iii).] Electric radiators are formed of flat heating surfaces 1, 2, &c. projecting from a vertical supporting surface 5 and juxtaposed with their edges adjacent so as to form the sides of a prism, pyramid, or frustrum thereof. The radiator may be provided with ducts so that air may flow into and through it ; in Fig. 1, the side 4 may be omitted to allow air to enter, and an upper outlet may be provided in wall 5. The electric heating elements are located in channels formed in the heating panels.
Patent GB-1515432-A (GB)
Title: Electro-mechanical filter
IPC: H03H9/05
Filed: 1976-03-03
Abstract: 1515432 Electromechanical filters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 3 March 1976 [6 March 1975] 08473/76 Heading H3U In an electromechanical filter comprising input and output electrodes on the surface of a piezoelectric wafer 1, there is disposed outside the region of the electrodes damping material 15 which consists of an elastic damping base mixed with a powder of substantially higher specific gravity. The powder forms with the elastic base a multitude of resonators which dampen vibrations outside the desired transmission band of the filter. The elastic base is preferably a synthetic resin, e.g. polyester, and the powder may be metallic, e.g. of tungsten. Damping material 15 may be provided on both surfaces of the wafer. As shown, the filter comprises two duals 2, 3, 4, 5 and 7, 8, 9, 10 connected by a capacitor formed by electrodes 12, 13 in a non-polarized region of wafer 1.
Patent GB-1523032-A (GB)
Title: Image reproducing apparatus
IPC: H04N1/04
Filed: 1976-03-03
Abstract: 1523032 Facsimile system CROSFIELD ELECTRONICS Ltd 2 March 1977 [3 March 1976] 08518/76 Heading H4F Half-tone image recording system of the type in which each half-tone image dot is formed by a line of spaced light beams (e.g. six) the intensity of each beam being individually modulated in accordance with the image density to be reproduced and with the screen density variations required to produce a half-tone image, wherein an optical element (e.g. a K-prism 62) is located in the beam paths which is rotatable to alter the angle of the line of beams incident or the recording surface 14 relative to the direction of beam scanning over the recording surface. As shown the output of a laser is split 42 into a line of six beams which are individually modulated (half-waveplate 44, crossed polarizers 46, 50 and electro-optic modulators 48), compressed together in the direction of the line of beams by prisms 52 and 54 (i.e. subjected to anamorphic beam compression), transmitted through a mask 56 having overlapping parallelogram shaped apertures 72, Fig. 3, magnified and focused by lens 58, 64 and 66 and rotated by prism 62. The arrows 74 in Fig. 3 represent the delays which are applied to the electric signals by delay devices D1-D5, Fig. 2, to compensate for the delay in the times at which different scanning beams cross the same half-tone dot area, arrow 68 represents the fast direction of scanning across the recording surface 14.
Patent GB-740562-A (GB)
Title: Improvements in universal joints
IPC: F16D3/38
Filed: 1953-03-28
Abstract: 740,562. Universal joints. HARRIS, C. W. March 9, 1954 [March 28, 1953], No. 8619/53. Class 80(2) A universal joint comprises driving and driven members a, a', with interengaging fork ends e, the inside surfaces of which are formed as frustums of cones with apices at the common centre of the joint. A ball c is embraced by inner part circular surfaces of the fork ends and is secured to the members a, a<SP>1</SP> by pins g, h. A double joint with an intermediate coupling piece is provided for cases where the axes of the shafts to be coupled do not meet.